The Sympathetic Nervous System Contributes to Capsaicin-Evoked Mechanical Allodynia But Not Pinprick Hyperalgesia in Humans

We thank Elaine Robinovitz and Mary Wells for their help in conducting this study, Dr. Robert Coghill for help with the statistics, and Drs. Eli Eliav and Andrew Mannes for reviewing this manuscript.

Correspondence should be addressed to Dr. Mitchell B. Max, National Institutes of Health, 9000 Rockville Pike, Building 10, Room 3C-405, Bethesda, MD 20892.

Dr. Bennett’s current address: Department of Neurology, Allegheny University of the Health Sciences, Philadelphia, PA 19102.